Which of the Following Statements Is True About Information Systems

Which of the following statements is true about information systems?

A) Most firms spend a huge portion of their information technology budgets on training and system security.
B) New programs should be thoroughly tested across the range of a firm's ware after deployment.
C) Purchase, configuration, and licensing costs for packaged software account for most information technology expenses of a firm.
D) Firms need to vigilantly manage the moving target of computer security issues.
E) Total cost of ownership of information systems is often a redundant concept while making technology investment decisions.